Tue Aug 22 16:49:12 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
authorRoland McGrath <roland@gnu.org>
Tue, 22 Aug 1995 22:47:57 +0000 (22:47 +0000)
committerRoland McGrath <roland@gnu.org>
Tue, 22 Aug 1995 22:47:57 +0000 (22:47 +0000)
* inet/netdb.h: Moved to resolv.
* inet/Makefile (headers): Remove netdb.h.
* resolv/Makefile (headers): Add netdb.h.
* resolv/gethnamaddr.c, resolv/inet_addr.c, resolv/netdb.h,
resolv/res_send.c: Updated from BIND-4.9.3-BETA26.

* hurd/thread-cancel.c: If SS->cancel_hook is not null, call it before
resuming the thread.
* hurd/hurd/signal.h (struct hurd_sigstate): New member `cancel_hook'.

* hurd/Makefile: Removed dep on hurd/signal.h for RPC stub objects.

Mon Aug 21 16:37:09 1995  Roland McGrath  <roland@churchy.gnu.ai.mit.edu>

* sysdeps/i386/dl-machine.h (elf_machine_rel): Grok R_386_NONE
relocs, and do nothing.  Why the linker generates them we may
never know.

* sysdeps/mach/hurd/i386/intr-msg.h: New file.

ChangeLog
NEWS
hurd/thread-cancel.c
inet/Makefile
netdb.h
resolv/Makefile
resolv/gethnamaddr.c
resolv/inet_addr.c
resolv/netdb.h [moved from inet/netdb.h with 99% similarity]
resolv/res_send.c
sysdeps/mach/hurd/i386/intr-msg.h [new file with mode: 0644]

index 37ed19f..a05ebf2 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,8 +1,29 @@
+Tue Aug 22 16:49:12 1995  Roland McGrath  <roland@churchy.gnu.ai.mit.edu>
+
+       * inet/netdb.h: Moved to resolv.
+       * inet/Makefile (headers): Remove netdb.h.
+       * resolv/Makefile (headers): Add netdb.h.
+       * resolv/gethnamaddr.c, resolv/inet_addr.c, resolv/netdb.h,
+       resolv/res_send.c: Updated from BIND-4.9.3-BETA26.
+
+       * hurd/thread-cancel.c: If SS->cancel_hook is not null, call it before
+       resuming the thread.
+       * hurd/hurd/signal.h (struct hurd_sigstate): New member `cancel_hook'.
+
+       * hurd/Makefile: Removed dep on hurd/signal.h for RPC stub objects.
+
+Mon Aug 21 16:37:09 1995  Roland McGrath  <roland@churchy.gnu.ai.mit.edu>
+
+       * sysdeps/i386/dl-machine.h (elf_machine_rel): Grok R_386_NONE
+       relocs, and do nothing.  Why the linker generates them we may
+       never know. 
+
 Thu Aug 17 16:18:38 1995  Roland McGrath  <roland@churchy.gnu.ai.mit.edu>
 
        * sysdeps/mach/hurd/Makefile: Don't elide sunrpc and manual from
        `subdirs' variable.
 
+       * sysdeps/mach/hurd/i386/intr-msg.h: New file.
        * hurd/intr-msg.c: Use INTR_MSG_TRAP macro from machine-dependent
        "intr-msg.h" for special syscall code, instead of i386-specific asm.
        * hurd/hurdsig.c: Use INTR_MSG_BACK_OUT macro from
diff --git a/NEWS b/NEWS
index 915af45..9d4c7d6 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -75,7 +75,7 @@ Version 1.10
 * The new header file <fts.h> and suite of functions simplify programs that
   operate on directory trees.  This code comes from 4.4 BSD.
 
-* The resolver code has been updated from the BIND-4.9.3-BETA24 release.
+* The resolver code has been updated from the BIND-4.9.3-BETA26 release.
 
 * The new function `malloc_find_object_address' finds the starting address
   of a malloc'd block, given any address within the block.  This can be
index db527c3..7fb8cd2 100644 (file)
@@ -62,6 +62,12 @@ hurd_thread_cancel (thread_t thread)
                                  (natural_t *) &state.basic,
                                  MACHINE_THREAD_STATE_COUNT);
 
+      if (ss->cancel_hook)
+       /* The code being cancelled has a special wakeup function.
+          Calling this should make the thread wake up and check the
+          cancellation flag.  */
+       (*ss->cancel_hook) ();
+
       __thread_resume (thread);
     }
 
index 069485b..9389a22 100644 (file)
@@ -21,7 +21,7 @@
 #
 subdir := inet
 
-headers        := netinet/in.h $(wildcard arpa/*.h protocols/*.h) netdb.h
+headers        := netinet/in.h $(wildcard arpa/*.h protocols/*.h)
 
 routines := ntohl ntohs htonl htons            \
            inet_lnaof inet_mkadr       \
diff --git a/netdb.h b/netdb.h
index e31569f..e2e1868 100644 (file)
--- a/netdb.h
+++ b/netdb.h
@@ -1 +1 @@
-#include <inet/netdb.h>
+#include <resolv/netdb.h>
index e07cfb0..f1a8701 100644 (file)
@@ -21,7 +21,7 @@
 #
 subdir := resolv
 
-headers        := resolv.h arpa/nameser.h sys/bitypes.h
+headers        := resolv.h netdb.h arpa/nameser.h sys/bitypes.h
 distribute := ../conf/portability.h
 
 routines := gethnamaddr getnetbyaddr getnetbyname getnetent getnetnamadr \
index d3b68f7..87b4db1 100644 (file)
@@ -93,6 +93,7 @@ static const char AskedForGot[] =
                          "gethostby*.getanswer: asked for \"%s\", got \"%s\"";
 
 static char *h_addr_ptrs[MAXADDRS + 1];
+static struct hostent *gethostbyname_ipv4 __P((const char *));
 
 static struct hostent host;
 static char *host_aliases[MAXALIASES];
@@ -156,7 +157,9 @@ getanswer(answer, anslen, qname, qclass, qtype)
        int haveanswer, had_error;
        int toobig = 0;
        char tbuf[MAXDNAME+1];
+       const char *tname;
 
+       tname = qname;
        host.h_name = NULL;
        eom = answer->buf + anslen;
        /*
@@ -249,19 +252,36 @@ getanswer(answer, anslen, qname, qclass, qtype)
                        buflen -= n;
                        continue;
                }
+               if (qtype == T_PTR && type == T_CNAME) {
+                       n = dn_expand(answer->buf, eom, cp, tbuf, sizeof tbuf);
+                       if (n < 0) {
+                               had_error++;
+                               continue;
+                       }
+                       cp += n;
+                       /* Get canonical name. */
+                       n = strlen(tbuf) + 1;   /* for the \0 */
+                       if (n > buflen) {
+                               had_error++;
+                               continue;
+                       }
+                       strcpy(bp, tbuf);
+                       tname = bp;
+                       bp += n;
+                       buflen -= n;
+                       continue;
+               }
                if (type != qtype) {
-                       /* CNAME->PTR should not cause a log message. */
-                       if (!(qtype == T_PTR && type == T_CNAME))
-                               syslog(LOG_NOTICE|LOG_AUTH,
+                       syslog(LOG_NOTICE|LOG_AUTH,
               "gethostby*.getanswer: asked for \"%s %s %s\", got type \"%s\"",
-                                      qname, p_class(qclass), p_type(qtype),
-                                      p_type(type));
+                              qname, p_class(qclass), p_type(qtype),
+                              p_type(type));
                        cp += n;
                        continue;               /* XXX - had_error++ ? */
                }
                switch (type) {
                case T_PTR:
-                       if (strcasecmp(qname, bp) != 0) {
+                       if (strcasecmp(tname, bp) != 0) {
                                syslog(LOG_NOTICE|LOG_AUTH,
                                       AskedForGot, qname, bp);
                                cp += n;
@@ -377,6 +397,36 @@ struct hostent *
 gethostbyname(name)
        const char *name;
 {
+       struct hostent *hp;
+
+#if defined(AF_INET6) && defined(RES_TRY_INET6)
+       if (_res.options & RES_TRY_INET6) {
+               hp = gethostbyname2(name, AF_INET6);
+               if (hp)
+                       return (hp);
+       }
+#endif
+       return (gethostbyname2(name, AF_INET));
+}
+
+struct hostent *
+gethostbyname2(name, af)
+       const char *name;
+       int af;
+{
+       switch (af) {
+       case AF_INET:
+               return (gethostbyname_ipv4(name));
+       }
+       errno = EAFNOSUPPORT;
+       h_errno = NETDB_INTERNAL;
+       return (NULL);
+}
+
+static struct hostent *
+gethostbyname_ipv4(name)
+       const char *name;
+{
        querybuf buf;
        register const char *cp;
        int n;
@@ -727,23 +777,3 @@ dn_skipname(comp_dn, eom)
        return (__dn_skipname(comp_dn, eom));
 }
 #endif /*old-style libc with yp junk in it*/
-
-#ifdef ultrix
-/* more icky libc packaging in ultrix */
-int
-local_hostname_length(hostname)
-       const char *hostname;
-{
-       int len_host, len_domain;
-
-       if (!*_res.defdname)
-               res_init();
-       len_host = strlen(hostname);
-       len_domain = strlen(_res.defdname);
-       if (len_host > len_domain &&
-           !strcasecmp(hostname + len_host - len_domain, _res.defdname) &&
-           hostname[len_host - len_domain - 1] == '.')
-               return (len_host - len_domain - 1);
-       return (0);
-}
-#endif
index 2a15067..01a38e6 100644 (file)
@@ -66,10 +66,6 @@ static char rcsid[] = "$Id$";
 
 /* these are compatibility routines, not needed on recent BSD releases */
 
-#ifndef NEED_INETADDR
-int __inet_addr_unneeded__;
-#else
-
 /*
  * Ascii internet address interpretation routine.
  * The value returned is in network order.
@@ -84,11 +80,6 @@ inet_addr(cp)
                return (val.s_addr);
        return (INADDR_NONE);
 }
-#endif /*NEED_INETADDR*/
-
-#ifndef NEED_INETATON
-int __inet_aton_unneeded__;
-#else
 
 /* 
  * Check whether "cp" is a valid ascii representation
@@ -113,8 +104,10 @@ inet_aton(cp, addr)
                /*
                 * Collect number up to ``.''.
                 * Values are specified as for C:
-                * 0x=hex, 0=octal, other=decimal.
+                * 0x=hex, 0=octal, isdigit=decimal.
                 */
+               if (!isdigit(c))
+                       return (0);
                val = 0; base = 10;
                if (c == '0') {
                        c = *++cp;
@@ -123,7 +116,7 @@ inet_aton(cp, addr)
                        else
                                base = 8;
                }
-               while (c != '\0') {
+               for (;;) {
                        if (isascii(c) && isdigit(c)) {
                                val = (val * base) + (c - '0');
                                c = *++cp;
@@ -141,7 +134,7 @@ inet_aton(cp, addr)
                         *      a.b.c   (with c treated as 16 bits)
                         *      a.b     (with b treated as 24 bits)
                         */
-                       if (pp >= parts + 3 || val > 0xff)
+                       if (pp >= parts + 3)
                                return (0);
                        *pp++ = val;
                        c = *++cp;
@@ -151,7 +144,7 @@ inet_aton(cp, addr)
        /*
         * Check for trailing characters.
         */
-       if (c && (!isascii(c) || (!isspace(c) && !ispunct(c))))
+       if (c != '\0' && (!isascii(c) || !isspace(c)))
                return (0);
        /*
         * Concoct the address according to
@@ -188,4 +181,3 @@ inet_aton(cp, addr)
                addr->s_addr = htonl(val);
        return (1);
 }
-#endif /*NEED_INETATON*/
similarity index 99%
rename from inet/netdb.h
rename to resolv/netdb.h
index a568e2d..822b621 100644 (file)
@@ -133,6 +133,7 @@ void                endprotoent __P((void));
 void           endservent __P((void));
 struct hostent *gethostbyaddr __P((const char *, int, int));
 struct hostent *gethostbyname __P((const char *));
+struct hostent *gethostbyname2 __P((const char *, int));
 struct hostent *gethostent __P((void));
 struct netent  *getnetbyaddr __P((long, int)); /* u_long? */
 struct netent  *getnetbyname __P((const char *));
index 4ee52b4..f8e58f3 100644 (file)
@@ -109,6 +109,13 @@ static int vc = 0; /* is the socket a virtual ciruit? */
 #define FD_ZERO(p)     bzero((char *)(p), sizeof(*(p)))
 #endif
 
+/* XXX - this should be done in portability.h */
+#if (defined(BSD) && (BSD >= 199103)) || defined(linux)
+# define CAN_RECONNECT 1
+#else
+# define CAN_RECONNECT 0
+#endif
+
 #ifndef DEBUG
 #   define Dprint(cond, args) /*empty*/
 #   define DprintQ(cond, args, query, size) /*empty*/
@@ -484,7 +491,7 @@ res_send(buf, buflen, ans, anssiz)
                                        _res_close();
                                s = socket(PF_INET, SOCK_DGRAM, 0);
                                if (s < 0) {
-#if !defined(BSD) || (BSD < 199103)
+#if !CAN_RECONNECT
  bad_dg_sock:
 #endif
                                        terrno = errno;
@@ -538,7 +545,7 @@ res_send(buf, buflen, ans, anssiz)
                                 * for responses from more than one server.
                                 */
                                if (connected) {
-#if defined(BSD) && (BSD >= 199103)
+#if CAN_RECONNECT
                                        struct sockaddr_in no_addr;
 
                                        no_addr.sin_family = AF_INET;
diff --git a/sysdeps/mach/hurd/i386/intr-msg.h b/sysdeps/mach/hurd/i386/intr-msg.h
new file mode 100644 (file)
index 0000000..353a6d2
--- /dev/null
@@ -0,0 +1,47 @@
+/* Machine-dependent details of interruptible RPC messaging.  i386 version.
+Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+
+#define INTR_MSG_TRAP(msg, option, send_size, rcv_size, rcv_name, timeout, notify) \
+({                                                                           \
+  error_t err;                                                               \
+  asm (".globl _hurd_intr_rpc_msg_do_trap\n"                                 \
+       ".globl _hurd_intr_rpc_msg_in_trap\n"                                 \
+       ".globl _hurd_intr_rpc_msg_cx_sp\n"                                   \
+       ".globl _hurd_intr_rpc_msg_sp_restored\n"                             \
+       "                               movl %%esp, %%ecx\n"                  \
+       "                               leal %1, %%esp\n"                     \
+       "_hurd_intr_rpc_msg_cx_sp:      movl $-25, %%eax\n"                   \
+       "_hurd_intr_rpc_msg_do_trap:    lcall $7, $0 # status in %0\n"        \
+       "_hurd_intr_rpc_msg_in_trap:    movl %%ecx, %%esp\n"                  \
+       "_hurd_intr_rpc_msg_sp_restored:"                                     \
+       : "=a" (err) : "m" ((&msg)[-1]) : "%ecx");                            \
+  err;                                                                       \
+})
+
+
+static void inline
+INTR_MSG_BACK_OUT (struct i386_thread_state *state)
+{
+  extern const void _hurd_intr_rpc_msg_cx_sp;
+  if (state->eip >= (natural_t) &_hurd_intr_rpc_msg_cx_sp)
+    state->uesp = state->ecx;
+  else
+    state->ecx = state->uesp;
+}